vue+Element-ui 設置時間默認值為00:00

將element-ui選擇時間的例子粘過來，設置    value: '00:00',

<el-time-select
        v-model="value"
        :picker-options="{start: '00:00',step: '00:15',end: '23:45'}"
        placeholder="選擇時間">
</el-time-select>